On Wed, Apr 05, 2017 at 05:29:48PM +0200, Thomas Monjalon wrote: > 2017-04-05 16:03, Ferruh Yigit: > > build error: > > In file included from .../lib/librte_ring/rte_ring.c(90): > > .../lib/librte_ring/rte_ring.h(162): > > error #1366: a reduction in alignment without the "packed" attribute > > is ignored > > } __rte_cache_aligned; > > ^ > > > > Alignment attribute moved to first element of the struct > > The fix is surprising. > Is it really doing the same thing as > } __rte_cache_aligned; > at the end of the struct? > It should be. Aligning the whole structure to start on a cache-line boundary should be exactly the same as telling the compiler to put the first field of the structure on a cacheline boundary.
/Bruce
